Here are some incentives for it: Cards like Corrupt, Cabal Coffers, Mutilate, and Defile want you to play as many swamps as possible, so their efficiency is maximized in mono-black decks
Annihilator 1 (Whenever this creature attacks, defending player sacrifices a permanent of their choice.)
Not every character card needs to be complicated especially when youre building a discard-themed deck
Final Fantasy VI Next is Final Fantasy VI with some fabulous new art, including Esper Terra
3 Memory Jar Drawing large amounts of cards in a single turn is the kind of play that one would use for faster, harder-hitting combos
Just like the goblins and dragons above these great tutors may fit perfectly into your deck, or give you a new idea to build around a type of card you hadn't previously considered